diff --git a/src/memory/memory.c b/src/memory/memory.c
index e206d66..b5d4bd0 100644
--- a/src/memory/memory.c
+++ b/src/memory/memory.c
@@ -24,6 +24,7 @@ static void lst_add_back(struct frame_zone **root, struct frame_zone *element)
 static void add_frame_node(multiboot_memory_map_t *mmmt)
 {
 	static uint32_t index;
+	uint32_t *pd = &boot_page_directory;
 
 	/**
 	 * # = kernel code
@@ -59,7 +60,7 @@ static void add_frame_node(multiboot_memory_map_t *mmmt)
 	}
 	end_addr = ROUND_CEIL(start_addr + len, PAGE_SIZE);
 
-	PD[PDE_FRAME_ZONES] =
+	pd[PDE_FRAME_ZONES] =
 	    ((uint32_t)frame_zones_page_table - VIRT_OFFSET) | INIT_FLAGS;
 	frame_zones_page_table[index] =
 	    ((uint32_t)start_addr & PAGE_MASK) | INIT_FLAGS;